golink: set hostinfo.Package to "golink" (#64)

Signed-off-by: Maisem Ali <maisem@tailscale.com>

golink.go

@@ -30,6 +30,7 @@ import (
 	"time"
 
 	"tailscale.com/client/tailscale"
+	"tailscale.com/hostinfo"
 	"tailscale.com/ipn"
 	"tailscale.com/tsnet"
 )
@@ -69,6 +70,8 @@ var localClient *tailscale.LocalClient
 func Run() error {
 	flag.Parse()
 
+	hostinfo.SetApp("golink")
+
 	// if resolving from backup, set sqlitefile and snapshot flags to
 	// restore links into an in-memory sqlite database.
 	if *resolveFromBackup != "" {